River find. What are they?

[SCDigginWithAK]

Hey, long time no post. I was out fishing in a river this afternoon and stumbled upon these. There are TONS out there and I have no clue what they are. Any ideas?

 

Amazon Forum Fav 👍

Agony and Death on a Gold Rush Steamer: The Disastrous Sinking of the Side-Wheeler Yankee Blade - Grab it through Amazon!

[Icewing]

Reminds me of a fence post topper

 

[kcm]

I agree. Looks to be from a wrought iron fence.

 

[Mud Hut]

it appears as tough the shaft is threaded?

 

[SkaBa]

Teeth off of a rock trencher.

 

[mick56]

They are carbide tipped teeth, they're on machines that grind up blacktop roads. Like a big roto-tiller, called asphalt milling machines.

 

[diggummup]

aka- bullet teeth

 

[Bruce R]

Rippinupdaroadasaurus-Rex

 

[tamrock]

I've never seen a ripper tooth that looks like that one, but the tip does look like a type of tungsten carbide called "cemented carbide" which is used in ripper teeth, rock drill bits, down pressure tri-cone bits and cutters on TBM's which is those big Tunnel Bore Machines that bored the famous Chunnel under the English Channel. If what you say is true that you found tons of it you found a potentially valuable treasure in scrap carbide. It may not look like a lot of weight in each carbide tip, but the density of cemented carbides can be 50-100% greater than that of the steel and a small piece will feel heavy in the palm of your hand. I use to travel sometimes with a fella from Kennametal who is a major supplier of tungsten carbide products of all kinds and they along with other on the web seek to buy tungsten scrap. Kennametal Carbide Recycling